EP 1195892 B1 20090422 - Method and corresponding transmitter for predistorting a wideband radio signal to avoid clipping
Title (en)
Method and corresponding transmitter for predistorting a wideband radio signal to avoid clipping
Title (de)
Verfahren und zugehörige Sender zum Vorverzerren eines Breitband-Radiosignals zur Vermeidung einer Begrenzung
Title (fr)
Procédé et émetteur correspondant pour effectuer une prédistorsion d' un signal radio à large bande permettant d'éviter l'écrêtage
Publication
Application
Priority
- EP 00440273 A 20001013
- EP 00440268 A 20001006
Abstract (en)
[origin: EP1195892A1] The invention relates notably to a method for clipping a wideband signal in order to eliminate signal overshots having an amplitude above a predefined threshold before submitting the wideband signal to a power amplifier. According to the invention, the method consists in subtracting from the wideband signal filtered pulses in phase the said wideband signal, each filtered pulse corresponding to an overshot, the amplitude of each filtered pulse being dependant on the amplitude of the corresponding overshot and on the predefined threshold. <IMAGE>
IPC 8 full level
H03F 1/32 (2006.01); H03G 11/00 (2006.01); H04J 13/00 (2011.01); H04J 13/04 (2006.01)
CPC (source: EP US)
H03F 1/3247 (2013.01 - EP US); H03F 2200/102 (2013.01 - EP US); H03F 2201/3236 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 1195892 A1 20020410; EP 1195892 B1 20090422; CN 1235423 C 20060104; CN 1359245 A 20020717; JP 2002185432 A 20020628; JP 3954341 B2 20070808; US 2002042253 A1 20020411; US 7466966 B2 20081216
DOCDB simple family (application)
EP 00440273 A 20001013; CN 01145681 A 20010930; JP 2001307155 A 20011003; US 97069401 A 20011005